Improvement in machines for making chain-links



3 Sheets-Sheet 1. J. SCHINNELLER & L. FITZPATRICK.

MACHINES FOR. MAKING CHAIN-LINKS.

- No. 194.181. 'PatenteflA'ug.14= ,1877.

s Sheets She'evz.

J. SCHINNELLE-R a; LLFITZPATR-ICK. MACHINES FOR MAKING CHAIN-LINKS.

Patented Aug. 14,1877.

N. PETERS, FHDTO-LITHOGRAFNER. WASHINGTON. D. C.

, heetseet'3- J. SCHINN-ELLER 81 L. F1 ATR MACHINES FOR MAKINGCHAIN-LINKS.

110.19%,181. P-atentedfAug.14,1871.

UNITED STATES PATENT Error..-

JAooB SGHINNELLER, .OF PITTSBURG, PENNSYLVANIA, AND LUKE FITZ- PATRICK,or BENWOOD, WEST vreeiNr IMPROVEMENT IN MACHINES FOR MAKING CHAIN-LINKS.

Specification forming part of Letters Patent No. 194,181 dated August14, 1877 application filed June 9, 1877.

To all whom it may concern:

Be it known that we, JACOB SGHINNEL- LER, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, and LUKE FITZ- PATRICK, of Benwood,county of Marshall,

State of West Virginia, have invented a new and useful lmprovementinMachines for Mak-' machine for making chaindinks; and consists in arotary mandrel provided with a cutter, and moving within a guide, theouter face of which is provided with an incline for discharging from themandrel the link as it is formed, and for moving back holders, incombination with a revolving die, the axis of which is provided with acutter, which operates conjointly with the cutter on the rotatingmandrel, for the purpose of separating the link and cutting the desiredscarf for welding, which link subsequently drops from the mandrel into aconveying-chute, where it is properly closed in its passage through saidchute, the whole being operated through the medium of suitabledriving-gear and eccentrics.

To enable others skilled in the art to make and use our invention, wewill proceed to describe its construction and operation.

In the accompanying drawings, which form part of our specification,Figure l is a top view of our improved machine for making chainlinks.Fig. 2 is a side elevation of the same, representing the relativeposition of the several parts when in position for receiving the ironfor forming the link. Fig. 3 is a vertical transverse section at line yof Fig. 2. Fig. 4 represents a face viewof the mandrel. Fig. 5 is a faceview of the roller.

In the drawings, A represents the frame of the machine, provided withsuitable bearings for the shafts B, O, D, and d. On the shaft B are twodriving-wheels, e f, which gear into wheels 9 h on the shafts O D. Onthe shaft D is also a wheel, e, which gears into a wheel, f, forrotating the shaft (1 and die or roller h On the inner end of the shaftD is placed the mandrel c, which rotates within a guide, j, having arecess at It for the reception of the iron for forming the links. Theouter face of the guide j is provided with an inclined face, 1, forthrowing back the holders m n, and for forcing the links oif themandrel. The mandrel, when viewed endwise, is of oval form, and isprovided with a cutter, 0. The longitudinal contour of the mandrel givesan ovalshaped opening to the link, the larger part being at the scarfedend, as shown in full lines, Fig.3, which link, after being dischargedfrom the mandrel, drops into the chute p with its larger end uppermost,as shown in said figure, and somewhat open. As it is essential to closethe same before welding-that. is to say, to bring the scarfed ends overeach other by closing or compressing the sides of the link, as indicatedin dotted lines, Fig. 3, where the closed link is represented as readyto pass from the chute-the chute will be closed upon the same by meansof the pivoted side g, which is moved forward by the eccentric r on theshaft B, and is thrown back into its original position by means of aspring at its lower .end. In this operation the link will be forced fromthe mandrel by reason of the inclined guide which surrounds it, the saidmandrel being adjusted, with reference to the chute and guide, so thatthe link will be forced off and fall when it is in a vertical position,or nearly so, and thus readily drop into the chute, where its sides arecompressed, as herein described...

The oval form of the mandrel will allow for the desired lap to the linkwhen closed, so as to bring the scarfs over or alongside of each other,thereby giving the same form to each end of the link, and uniformitythroughout its contour. The link, when discharged from the chute, is inform for welding. The shaft 0 is provided with recesses, in which areplaced holders m it, provided with projections s, which, coming incontact with the projection t, move them alternately over the iron onthe mandrel i. The form of the die or roller h is clearly shown in Figs.3 and 5, and in outline is of such form that its points u will wipe theiron, causing it to closely hug the mandrel i as it is being woundaround it. The axis or back a cutter 0 which 0 )erates in con'unctionwith the cutter in the mandrel i for separating the links formed aroundthe mandrel. The holders m n should have sufficient play at their innerends to allow them to pass easily over the iron as it is Wound aroundthe mandrel Having thus described the construction of the several partsof our improvement, and the relation that they bear to each other, wewill proceed to describe the operation, which is as follows: The iron isheated to a suitable degree and placed in the recess is of the guide j,forced in under the holder m or n, as the case may be, and the revolvingof the mandrel 'l winds the iron around it. The roller or die h rotatingwith the mandrel i, the points it press the iron close to the walls ofthe mandrel. The end of the link, coming in contact with the inclineface I of the guide j, forces the formed iron between the cutters 0 and0, which will cut the desired scarf and separate the formed link fromthe bar or rod being fed, which separated link drops down into theconveying-cbute 19, one side of which is moved forward by the eccentricon the shaft B, which closes the link, so as to bring the scart's overeach other, and in position for being finally closed by the weldingprocess. After the link has been thus closed it drops from the machineinto a suitable receptacle.

Having thus described the nature, construction, and operation ofourimprovement, what we claim isl. The mandrel 1', adapted to form thelinks of a chain, and adjusted to rotate within the guide 9', incombinationwith the irregularlyshaped die or roller h, constructed torotate and smooth down the metal upon the mandrel as it is being woundthereon, substantially as shown and herein described.

2. In combination with the mandrel, binding-roll, inclined guide, andholders, the cutters o o, situated beyond the point of bite of the rolland mandrel, as and for the purpose set forth.

3. The revolving mandrel i, in combination with the die or roller h andholders m n, operating with relation to the mandrel 0', substantially asherein described, and for the purpose set forth.

4. In a machine for making chain-links, the chute 12, provided with apivoted side, q, adapted by means of a cam or eccentric movemen t, asset forth, to close upon the link when the same falls into the chute, incombination with the rotating mandrel i and guide adapted to force thelinks therefrom, all substantially as specified.

JACOB SOH-INNELLER. LUKE FITZPATRIGK. Witnesses:

A. 0. JOHNSTON, JAMES E. BARRETT.

